Typewriting machine



E. B. HESS AND'L. C. MYERS.

TYPE'WRITING MACHINE. APPLICATION FILED AUGJB, I92o.

1 ,427,46'7, Patented Aug. 29, 1922.

E. B. HESS AND L. C. MYERS.

TYPEWRITING MACHINE. APPLICATION FILED AUAG. I9, 1920. 1,427,467'. Patented Aug. 29,A 1922.

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1,427,467, Patented Aug. 29, 1922.

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Patented Aug. 29, 1922.

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1,427,467* Patented Aug. 29, 1922.

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TYPEWRITING MACHINE. APPLICATION FILED AuG.I9, 1920.

Patented Aug. 29, 1922.

YSHEETS-SHEET 6- UNITED STATES PATENT OFFICE.

EDWARD n. Hass AND LEWIS c. MYERS, or BROOKLYN, NEW YORK, AssIGNons To ROYAL TYPEWRITER COMPANY, INC., or NEW YORK, N. Y., A CORPORATION or NEW YORK.

TYPEW'RI'IING MACHINE.

Specification of Letters Patent. Pal-.Qned Aug, 29, 1922,

Original apnlication led May 11, 1920, Serial No. 380,601. Divided and this application led August 19, 1920. Serial No. 404,534.

To all 'whom t may concer/a Be it known that we, EDWARD B. Hnss and LEWIS C. MYERS, citizens of the United States of America, and residents of the city of N ew York, in the borough of Brooklyn, county of Kings, and State of New `York, have invented certain new provements in Typewriting Machines, of which the following is a specification.

The present invention relates generally to typewriting machines, and has more particularly reference to a novel construction of shiftable carriage particularly, though not exclusively, adapted to be used in connection with the improvement on the Royal typewriter set forth in an application Ser. No. 380601 filed May 11, 1920, of which this application is a division. The structure more particularly involved is one in which the shiftable platen carriage is mounted on the transversely traveling carriage; and the invention consists of the hereinafter disclosed features of construction and arrangement'of parts, a preferred form of which is embodied in the accompanying drawings, in which- Fig. 1 is a vertical transverse sectional view of a typewriting machine embodying the invention, the section being on a line just forward of the platen so as to exclude the keyboard and type bars:

Fig. 2 is a horizontal sectional plan view showing' the platen and adjacent elements:

F ig. 3 is a vert-ical sectional view adjacent the left hand end of the platen looking from the rear of the machine:

Fig. 4 is a vertical sectional view similar to Fig. 3 but showing the right hand end of the platen l Fig. 5 is a detail view of part of Fig. 4 showing the connection between the lifting rail and the lifting arm:

Fig. 6 is a sectional view on the line 6-6 of Fig. 5.

Fig. 7 is an enlarged sectional detail view of part of the shiftable carriage shown in Fig. 4.

Fig. 8 is an enlarged view in plan with parts broken away and in section substantially on the line 8-8 of Fig. 4:

Fig. 9 is a vertical sectional view on the line 9 9 of Fig. 1:

and useful lm- Fig. 10 is a vertical sectional view on the line 1010 of Fig. 4: I

Fig. 11 is a horizontal sectional view on the line 11--11 of Fig. 10:

Fig. 12 is a detail sectional view of a i modified form of the shown in the upper Fig. 10: and

shiftable carriage stop right hand corner of Fig. 13 is a verticaly sectional View on the line 13-13 of Fig. 1.

The framing of the machine consists of y connected with the underside of lower raceway 4, and escapement wheel support 6 connected with the escapement frame and with the rear wall 2.

Supported on the lower raceway 4 is a transversely movable carriage 7 in which is supported a shiftable carriage 8 carrying the platen 9, the said shiftable carriage being raised and lowered by means of shift rail 10 extending transversely across the machine above the escapement frame and in rear of lower raceway4.

The lower ball race 4 constitutes what may be termed a mono-rail support for the transversely traveling carriage 7, additional means for supporting the overhang of said carriage being provided on t-he escapement framing, said additional means here taking the form of two guide rollers 41 and 42. Escapement wheel support 6 is provided with a bushing 43 for the reception of the spindle of esca-pement wheel 44 and escape- :nent pinion 45 and has an aperture 46 for the reception of screw 47 that holds the Iguide roller 41 in position. Guide roller 42 is carried by a plate 48 secured to support 6 by means of screw 49.

The transversely traveling carriage is composed of traveling ball race 50 and end standards 51 provided with rearwardly eX- tending overhanging portions 52 in which are mounted a transversely extending guide rod 53 (which here takes the form of a rocktached by held at' each end by a bearing screw 54 having a bearing portion 55 fitting in an open,-`

ing in overhang 52 and provided with "a" threaded*stemA 56 in engagement with a threaded opening in said rock shaft. 57 indicates a margin rail and 58 is a tabular bar, both of which are connected with overhanging portions 52 and which, in additionk to the primary function implied by their names, also act as stay rods fonthe traveling carriage; 59 indicates clamps that are atmeans of screws 60 to upper ball race and provided with horizontally eX- Itendin'gand curved: guide portions 61l that engage the underside of lower ball race 4. Between the upper and lower raceways are the usualballslv62 having encircling gears 63 engaging with racks 64 and 65 of said raceways.. i' l l j The shiftable car1iage8 is constructed as yfollows z--80 is a transversely extending and horizontally .disposed channel member of sheet metahha-ving bent `ends 81 adjacent which are illin'g blocks 82. Said channel member isconnecited with end walls 83 of the shiftable carriage by means of screws 84 that passthrough walls 83., ends 81 and into lilling blocks 82. Channel member 8O and filling block 82 are also connected together y leans of counter-sunk screws 85 and suitable bumper stops are carried by illing blocks 82, said stops engaging with the upper side of upper raceway50. In the presentinstance, thisl bumper stop is constructed as follows: A recess 86 is formed in the filling l l block and in the channel member in which is yseated a cup shaped .holder 87 containing 40 -f i l a piece of leather or other similar substance 88 held inplace by anabutment member 89 having a shoulder, as shown, under which passes the intuvrned edge of cup shaped member 87. Said cup shaped member is `carried by a threaded stem 90 passing Y through Ifilling block 82 and locked in posilblock.` n Vthrough end walls 83 insuch manner that tion by means of a nut 91. There is a bumperstructure'oi' this character in each filling The shaft of plateny 9 extends the fplaten is freely rotatable `in said end walls;` and said 'platen shaft also extends through vertical slots 92 in end standards 51 ot' the traveling carriage. The shiftable vcarridge is r.mounted in two pairs of lparallel arms carried bythe traveling carriage. (lne 93 l are supported on 'pointed out, is a rock which, -as i previously and shaft with lwhich theguide rollers 41 '42 engage, cachot these armsy being provided with bushing 94 secured to said rock shaft by pins 95 and the outer ends of arms 93 being provided with sleeves 96 through which the platen shaft passes. The

other pair of parallel arms 97 are pivotally l supported at 98 in end standards 51 of the transverselymoving carriage and are pivotally connected at their outer ends 99 with end ra'me`83 of the shiftable carriage. End walls of the shiftable carriage have over hanging portions 100 that are connected by a transverse brace rod 101.` v j ljaper pan support 118 extends transversely between end walls 83, being attached to the latter by means of brackets 119, and provided .with strucleup portions 12() that forni bearings for pendant levers 121 Carrying a lower rear pressure roller 122 and normally urged into engagement with the platen by means oi' a flat spring 123 having one end secured tothe paper pan support. 124indicates a lower i'iront pressure feed roll carried by abell crank 125 pivotally supported in ears 126 struck up from transverse channel member 8O and normally urged into engagement with the platen by e means of a iiat spring 127 mounted on a raised stud 128 on said channel member and having its end 129 turned downwardly to engage the bottom oi said channel member. A suitable releasing means for the 'pressure rolls are provided, having the form here of a cam bar 130 rotatably mounted in end walls 83 and provided with cam portions or notches 131 and 132, one of which engages extension 133 oi' bell crank 125 and the other of which engages the end oi' pendent lever 121. Said cam bar 130 is also supported by meansof oppositely extending struck-up portions 134 formed in one ot the side walls of channel member 80. It will be understood that when cam bar '130 is turned in the proper direction, lower pressure rolls 124 and 122 will move away from the platen. The means here provided for turning cam bar 130 consists of `a handle 135 carrying 'a sector 136 meshing with a sector 137 on the end of cam bar 130. Lever 135 is pivotally supported at 138 in one of the cndwalls 83. )verhanging portions 100 ot end walls 83 are provided with stops that supplement bumper stops 89, having here the form of a downwardly projecting abutment member 139 that engages margin rail 57 of the traveling carriage. A modified form is shown in Fig. 12 in which member 139 is Aprovided with an ear 14() for the reception oi an adjustable screw 141 that engages margin rail 57 as 'a stop member.

In addition to the elements above de scribed, the shi'ftable carriage also supports suitable scaleindication and pointer means as shown in Fig. 1 where scale 'means `168 and pointer means 169 are secured to channel member 80 by. suitable screwsy 170 and 171. Y V3 Suitable means are provided for `lifting and lowering the shii'table carriage which, in this instance, comprises essentially a shift for vertically adjusting said shift rail with ,respect to one or both ofthe vertical shift rail 172 extending transversely of the machine above the escapement frame and consisting of an angular piece of sheet metal, one face of which constitutes a horizontal track 173 on which travels the shiftabfie carriage traveling roller 175 carried by a suitable carriage clamp 176 having a horizontally extending` guide member 177 engaging with the under side of horizontal track 173. Clamp 176 is secured in any suitable manner to channel member 'U.

At each of its ends said shift rail has a downwardly extending projection 178 closely adjacent the abutment surfaces 179 of the side wall of the main frame to take up the end thrust of the carriage. Said shift rail is carried by two vertical shift arms 180 one at each end of the machine to which it is attached by means of angular extensions 181, In the present instance, provision is made arms 180. As shown, angular extensions 181 are provided with a horizontal slot 182 in which is seated an eccentric adjustment member 183, the stem of which passes through shift rail 172 and is locked in position by means of lock-nut 184. Eccentric member 183 thus constitutes a binding screw that clamps shift rail 17 2 and extension 181 together.y 185 is a second binding screw that passes through extension 181 and is tapped into shift rail 172. At the point where binding screws 183 and 185 pass through extension 181, there are vertically elongated openings 186 and 187. If binding screws 183 and 185 are loosened, it will be understood that, by shifting the eccentric 183, rail 172 may be adjusted vertically so as to render said shift rail parallel with the lower raceway, after which the binding screws are tightened to retain the parts in the position to which they have been adjusted. Said shift rail and shift arms are carried by two pairs of parallel links, an upper pair 188, pivotally connected with vertical shift arms 180 at one end and extending` through openings 189 in the shift rail and pivotally supported on pin 190 carried in block 32 of lower raceway 4; and another and lower pair, 191 suitably supported in the machine.

Any suitable means may be employed to lift and lower the vertical 'shift arms 180. Preferably, this is accomplished by the mechanism claimed in application Sei.: No. 394,672 filed July 8, 1920.

The construction of the line space advancing mechanism herein disclosed is claimed in application Ser. No. 399,376 filed July 27, 1920.

The construction of the overhead bail actuating means and the paper pan actuating means herein disclosed is claimed in application Ser. No. 569,321, iled J une 19, 1922.

The feature of providing raceways 4 and v'ing bloclr at each end in said channel meinber, and end walls for the carriage secured to the angularly turned ends and lilling blocks.

In a typewriting machine, a shif'table carriage comprising: a transversely extending channel member of sheet material having angularly turned sides and ends, a filling block at each end in said channel membei', means for securing the filling blocks to the channel member, and end walls for the carriage secured to the channel member.

4. In a typewriting machine,v a shiftable carriage comprising: a transversely extending channel member of sheet material haying upturned sides and ends, a filling block at each end and in said channel member, means for securing the filling block to the channel member, end walls for the carriage secured -to the channel member, and a bumper stop at each end of the channel member, consisting of a cup-shaped holder having an inturned edge, seated in a recess in the channel member and filling block, a shouldered abutment member held in place by the inturned edge of the cup-shaped holder, a cushioning member above the abutment member and within said holder, and means for adjusting the position of the cup-shaped holder.

5. In a typewriting machine, a shiftable carriage comprising: a transversely extending channel member of sheet material having upturned sides and ends, a filling block at each end in said channel member, means for securing the filling block to the channel member, end walls for the carriage secured to the channel member, a bumper stop at each end of the channel member consisting of a cup-shaped holder having an inturned edge seated in a recess in the channel member and filling blocl, a shouldered abutment member held in place by the inturned edge of the cup-shaped holder, a cushioning member above the abutment member and within said holder, means for adjusting the position of the cup-shaped holder including a stem carried by the holder and extending in threaded engagement with the filling block up through the top thereof, and a loclr nut on the` threaded stem above the lling block.

(l. In a typewritin'g machine, a shiftable carriage comprising: a transversely extendl `and projecting through the channel member, countersunk screws connect-ing thebottom of the channel member with the filling blocks, and endwalls for the carriage connected to the' channel member.

In `a typewriting machine, a shiftable carriage comprising: a transversely extending channel member of sheet material having upturned sides and ends, a filling block at each end in said channel member, a bumper stop carried by each `filling block and projecting through the channel member, 'countersunk screws vconnecting the bottom of the channel member with the filling blocks, endwalls for the carriage secured to the uptu'rned ends' of the channel member and to the filling blocks.

8. In a typewriting machine: a platen, a shiftable carriage, supporting said platen, including a 'transversely extending channel member of sheet material, having oppositely extending struck up portions in one of its sidewalls, endwalls "for the carriage connected to said channel member, lower front and rear pressure feed rolls on said carriage, releasing means for said rolls including a cam bar mounted in the endwalls and in the oppo'site'ly extending struck up p0rtions of the sidewalls of the channel member, a sheet metal paper pan support, on the shiftablercarriage, having struck up poltions forming ears, and a pendant lever mounted in said ears, and supporting the rear pressure feed rolls. l

9.111 a typewriting machine: a platen, a .shiftable carriage,supporting said platen, including a transversely extending channel member of sheet material having oppositely extending struck up portions in one of its sidewalls", endwalls forthe carriage connected to said channel member, lower front and rear pressure feed rolls on said carriage, and releasing means for said rolls including a cam vbar mounted in the endwalls and in the oppositely extending struck up portions of the sidewalls of the channel member, vertically extending ears struck up from the bottom of ther channel member, a bell crank one arm of which carries vthe front pressure roll, and a horizontally disposed leaf spring housed within the channel member engaging the other arm of the bell crank. y

l0. In a ytypewriting machine: a platen, a shiftable carriage, supportingv said platen,

' including 'a transverselyl extending channel member of sheet material, having oppositely extending struck up portions in one of its rideva-'fills end'walls for thel carriageconnectcd to said ,channel'membeig lower front and rear pressure feed rolls onsaid carriage, and releasing means for said rolls including ka cam bar mounted in the endwalls 4and in the supporting the rear pressure feed rolls.

il. In a typewriting machine: a platen, a sbiftable carriage, supporting said platen,

includinga transversely extending channel .e

member of sheet material, endwalls for the carriage connected to said channel member, \1.ertically extending ears consisting of portions struck up from the bottom of the chan# 'nel member, a bell crank mounted in "said ears, a front pressure feed roll carried inone of the arms ofthe bell crank, a fiat spring haring 'a `downturned portion engaging with thc bottom of the channel member and bearl ing against the other arm of the bell crank,

a raised stud within said channel member :'upporting said flat spring.

1Q. In a typewriting machine: a transversely tiavelin'gV carriage including a transrver'sely extending upper ballrace and end standards, a margin rail extending between they end standards, a shiftable` carriage, 'mounted on the "traveling carriage, including a transversely extending member above the ball race and end walls, `bumper stops on the transversely extending member to` engage the top of the ball race, and stops on the end walls of the shiftable carriage to engage the margin rail.

i3. In a typewriting machine: a relatively stationary carriage raceway, a shiftabletrack et sheet material kangular 1n cross section and having a horizontal track portion, a.

EDWARD B. nnss'. Lewis o. MYERS. 

